Steam-generator.



No. 808,286. PATENTED DEC. 26, 1905.

- W. L. JONES.

STEAM GENERATOR.

APPLICATION FILED JAN. 19'. 1905.

2 SHEETS-SHEET 1.

No. 808,286. PATENTED vDEG. 26, 1905.

W. L. JONES.

STEAM GENERATOR.

APPLICATION FILED JAN. 19. 1905.

2 SHEETS-SHEET 2.

U N ITED STATES PATENT orrron l VILLIAM L. JONES, OF SAN FRANCISCO,CALIFORNIA, ASSIGNOR OF ONE- HALF TO SAMUEL M. SNYDER, OF SAN FRANCISCO,CALIFORNIA.

STEAM-GENERATOR.

Specification of Letters Patent.

Patented Dec. 26, ,1905,

Application ined January 19,1905. serai No. z4i,806.

T all whom it may concern:

Be it known that I, WILLIAM L. JONES, a

citizen of the United States, residing at San Francisco, in the countyof San Francisco and'State of California, have invented certain new anduseful Improvements in Steam- Generators, of which the following is aspecification.

My invention relates to steam-boilers of ro the class commonly known asflash-boilers,

in which a number of small coiled tubes are employed into which water isadmitted and in which such water flashes into steam at some point in thelength of the coil. The

advantages of this class of boiler are due partly to its lightness andportability and partly to its eXtreme safety and the absence of allliabilities of explosion.

My Ainvention consists in certain improvezo ments in the construction ofsuch boilers which tend to make them more efficient in use and betteradapted for their intended purposes.

An embodiment of my invention is shown in the accompanying drawings, inwhich- Figure l is a vertical section of the boilercasing, the tubesbeing shown in side elevation. Fig. 2 is a horizontal section on theline 0c of Fig. l, the tubes being shown in plan view. Fig. 3 is avertical section taken centrally through the tubes. Fig. 4 is ahorizontal section on the line y y of Fig. 1 looking downwardly.

The shell of the boiler is represented by. l and is shown as mountedupon the suitable support 2. This shell is lined with some refractory ornon-conducting substance, as shown at 3. It is provided with the stack 4for the escape of gas and other particles of combustion. A water-supplypipe is shown at 5, in which is placed a three-way valve by means ofwhich water canbe directed into the generator or diverted therefrom.This valve is automatically controlled by a float through suitableconnections which will beI the lowest section 7 of tubing and isdischarged into the vertical receiver 8, in which it accumulates. It isthe intention to keep a supply of water in this receiver as a reserve,and it is therefore provided with a float 9, connected, by means of arod l0, lever 11, and link 12,- with an operating-crank 13 on the stemof the three-way valve. Two positions of this float are substantiallyindicated, one in the section Fig. 3, in which the body of water hasraised the float and closed the supply-valve. cated in Fig. 1 and by achange in the relations of theconnecting-levers indicating that theiioat has sunk in the receiver and that the valve is open to allow waterto be delivered to the generator. The second coil or tube I4 leaves thegenerator near its bottom and passes around in the coil to a point whereit is connected by an inclined `coupling 15, as shown in F ig. 4, to thenext coil above. Each coil is connected by a similar coupling to the oneimmediately above it, and the final or top coil enters thereserved-steam reservoir 16. This reservoir is provided with verticaltubes, such as indicated at 17 in Figs. 2 and 3, through which the heatfrom the burner 18 can ascend and keep' the steam within the reservoirat the high temperature. The pipe 19, projecting through the top of thisreservoir, leads to the engine. Each coil is preferably flat or in thesame plane and consists of a section of pipe which is doubled uponitself, with one end connected to the coil below it and the other endwith coil above it, except the top and bottom coils, which are connectedwith two reservoirs, respectively. The central or doubled portion ispreferably elliptical and in the form of the letter S, which avoidsashort or abrupt turn of the pipe and also affords two substantiallycircular spaces, in which are located or nested the water and steamreservoirs, respectively. The two res- The other position is indiervoirsare virtuallyenlargements of the pipes g or conduit through the boiler,one at the beginning of the water portion of the coils and the other atthe end of the steam portion.

This boiler is particularly adapted for use with automobiles on accountof its eXtreme lightness, its compactness, and its safety. It containsadvantages over other generators of the same general class, owing to theuse of the water-reserve reservoir and the steamreserve reservoir. Wherethe engine de- IOO pends for its supply of steam upon the limited amountcontained in the coils, it frequently happens that the steam gives outon hills where the pull or load becomes excessive and the machine mustbe stopped until steam is renewed. The same disadvantage eXists wherethe boiler is supplied with water through a single pipe. By using areserve water-reservoir with automatic means for controlling the supplyto it and by using a reserve steam-reservoir which supplies steamautomatically as called for by the engine these disadvantages areobviated and the efficiency of the machine is greatly increased.

I do not wish to limit myself to the exact constructions andarrangements herein described, vand shown in the accompanying drawings,as I desire to avail myself of such modifications and equivalents asfall properly within the spirit of my invention.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. A coil for steam-generators consisting of pipe doubled upon itself inthe same plane, the central or doubled portion being elliptical andS-shaped.

2. In a steam-generator, a shell, a series of connected coils therein,and a water-reservoir and-a steam-reservoir nested or located verticallyand side by side in said coils.

3. In a steam-generator, a shell, a series of connected coils therein,one above the other,

with registering spaces, and two reservoirs in said spaces arranged sideby side and connected with the top and bottom coils respectively.

4. In a steam-generator, a shell, a series of connected coils therein,one above the other, each coil consisting of a section of pipe dou bledupon itself and having the doubled portion S-shaped and forming twospaces, the spaces in the different coils registering, and tworeservoirs in said registering spaces and connected with the top andbottom coils respectively.

5. In a steam-generator, a shell, a series of connected coils therein,each provided with spaces, two reservoirs, in said spaces and connectedwith the end coils respectively, one reservoir being for water and theother one for steam, the steam-reservoir being provided with tubes, andmeans for automatically regulating the water-level in the otherreservoir.

In testimony whereof I have affixed my signature, in presence of twowitnesses, this 17th day of December, 1904.

WILLIAM L. JONES.

Vitnesses F. MORTIMER, A. HALL.

